Course of Construction Insurance vs Builders Risk: What the Difference Actually Is

Course of construction insurance and builders risk describe the same coverage under two regional labels. The distinction confuses non-specialists; brokers treat them as fully interchangeable. In Canada, the label is course of construction. American contracts use builders risk. Both refer to first-party property insurance that protects a project against physical loss to materials, equipment, and the work in place during construction. 

The labels matter when construction insurance and surety requirements show up differently across contract language, policy language, and certificate language, even though the underlying coverage doesn’t change. Knowing where the labels align, and where the contract, policy, and certificate diverge, prevents the most expensive misses on a construction project. 

Course of Construction vs Builders Risk: It’s a Regional Difference

Region determines which name a contract uses. The coverage underneath is consistent across markets. A policy named course of construction in Toronto and a policy named builders risk in Dallas are the same instrument: property insurance for a project during construction. Contract forms, brokers, and carriers in each region default to one label or the other, but they’re describing the same product.

Why Canada Uses “Course of Construction”

Canadian commercial property insurance grew out of British marine and inland marine traditions, where “course of” framed coverage as ongoing across a defined period. CCDC contracts and most Canadian broker forms use course of construction, often abbreviated COC. 

The phrase reflects how the policy operates: coverage runs from the start of work until substantial completion or another defined endpoint, regardless of how the property changes during that span.

Why the US Standardized on “Builders Risk”

American insurance markets settled on builders risk decades ago, and the term carried into AIA and EJCDC contract families. ISO and inland marine forms use the same label. A US contractor or developer asking a broker for a quote will be quoted “builders risk” by default. 

Course of construction shows up occasionally on cross-border projects or when a Canadian carrier writes a US risk, but the working term in domestic American practice is builders risk.

What UK and Australian Contracts Use

UK construction contracts typically reference Contractors All Risks, often shortened to CAR. JCT forms specify CAR coverage as part of the works insurance schedule. Australian practice follows the same convention, with CAR coverage required under most AS contract forms. CAR differs from US builders risk in scope and structure, but the core function is consistent: property coverage for the project during construction.

What This Coverage Includes

Builders risk is first-party property insurance for the project itself. The policy responds when covered property suffers physical loss or damage from a covered cause of loss during the policy period. Coverage attaches to the project, not to the contractor’s operations or any third-party liability. 

Reading the policy form is the only reliable way to confirm what a specific carrier covers, because forms vary across markets and underwriters.

Property and Materials Covered

A builders risk policy generally covers:

• The structure under construction, including completed and in-progress work
• Building supplies stored on-site
• Materials in transit to the project
• Items held in temporary off-site storage
• Scaffolding, formwork, and temporary structures (on most forms)
• Fixtures and equipment intended for installation

Soft costs like architect fees, financing carrying costs, and lost rents are available as an extension on most reporting and completed-value forms, but only when specifically endorsed.

Covered Perils

Builders risk forms are typically written on a special perils basis, sometimes called all-risk. The policy covers direct physical loss except causes specifically excluded. Common covered events include fire, theft, vandalism, windstorm, hail, lightning, water damage from burst pipes, and collapse. 

Named perils forms are available at lower premiums, where coverage applies only to perils listed by name. The form itself, not the marketing label, determines which approach a specific policy follows.

What’s Excluded

Standard builders risk policies remove a defined set of perils and conditions:

• Earthquake and flood (available by separate endorsement, with their own sublimits)
• War and nuclear hazard
• Employee dishonesty
• Faulty workmanship, materials, or design
• Wear and tear, mechanical breakdown
• Ordinance or law

The faulty workmanship exclusion drives more disputes during construction than any other clause, which is why it belongs in any serious construction risk management review. The line between excluded faulty work and resulting covered damage rarely reads clearly to a non-specialist. 

How Builders Risk Shows Up in Construction Contracts (and Where It Goes Wrong)

Builders risk obligations live in the insurance section of the construction contract, alongside requirements for general liability, professional liability, automobile coverage, and any required bonds. Several decisions are buried in those clauses: which party procures the policy, what limits apply, who must be named on it, and which endorsements are required. These are the kinds of legal red flags in bid documents that can reshape risk before work begins. 

Misalignment between the contract requirement and the policy actually issued is where the work usually goes sideways.

Who Is Required to Procure the Coverage Under the Contract

Procurement responsibility varies by contract form. On AIA A201 and similar owner-friendly forms, the owner typically procures builders risk for the entire project, with the general contractor and major subcontractors named on the policy. On design-build and CM-at-risk arrangements, the contractor often procures the coverage. 

Some negotiated forms split responsibility: the owner procures coverage on the structure, the contractor procures coverage on materials in transit and off-site storage. Using a consistent contract review checklist to read the procurement clause first prevents the most common gap, where both parties assume the other party bought it and neither did. 

Contract Language vs Policy Language

Contracts often use generic insurance terminology that doesn’t map directly to any specific policy form. A contract might require “all-risk builders risk insurance with a limit equal to the full contract value,” but that phrase has no fixed meaning in the underwriting market. The policy actually issued may use a different cause-of-loss form, a different valuation basis, or different sublimits than what the contract intended. 

The mismatch surfaces only when something happens, the claim gets denied or reduced, and the parties argue about whether the contract requirement was actually met.

Named Insureds, Additional Insureds, and Endorsements

Two roles on a builders risk policy carry different rights:

• Named insured. Owns the policy, controls claim handling, and holds primary rights to recover losses.
• Additional insured. Receives extended rights through a specific endorsement, with narrower scope and different triggers. Not the same as a named insured.

A construction contract typically requires the contractor or owner to procure coverage and name specific parties as additional insureds on the policy. The endorsement form determines what each additional insured actually receives. Generic phrases like “name the owner as additional insured” leave critical gaps if the underlying endorsement is narrow or the carrier substitutes a non-standard form.

Where Contract, Spec, and Policy Diverge

Three documents describe builders risk requirements: the contract, the technical specifications, and the policy itself. They rarely match perfectly. 

The contract might call for all-risk coverage with a $50 million limit. A construction specifications review might surface an insurance section with a different limit or a different deductible structure. The policy actually procured might exclude a peril both documents assumed was covered.

Each document was drafted by a different party at a different time, often without cross-referencing the others. Mid-project, when a loss happens, the divergence determines who pays. 

The builders’ risk vs course of construction terminology question rarely matters in a claim. The deductible, the named insureds, the missing endorsement, and the excluded peril matter every time.

Common Misses That Surface Mid-Project

Several patterns recur across projects:

• The contract requires named insured status for the GC, but the certificate shows additional insured only.
• The policy excludes a peril central to the project (flood for a waterfront site, earthquake in California) without a sublimit added.
• Soft costs coverage is required by the contract but absent from the bound policy.
• The deductible exceeds what the contract permits.
• Coverage terminates at substantial completion, but the contract assumes coverage runs through punch list and warranty.
• Off-site storage limits apply only to certain locations, so major lay-down yards fall outside the policy.

Each of these surfaces during a claim, after correction is no longer available. That is how routine contract risk can become post-award fee erosion in construction. Catching them during contract review is the only reliable defense. 

What Contract Review Looks Like With Document Crunch

Insurance language is dense, full of cross-references, and easy to skim past during contract review. Document Crunch reads it the way an experienced risk manager would: surfacing the procurement obligation, comparing required coverages against the spec section, flagging mismatches between contract language and what a standard policy form delivers, and citing every finding back to the exact clause and page.

Project Assist works across the full document set, so contract requirements, technical specifications, and any insurance exhibits get reviewed together rather than in isolation. When a specification adds a coverage requirement the main contract didn’t mention, the conflict surfaces before kickoff. 

A flow-down that shifts risk in a way the prime contract didn’t anticipate gets caught the same way. Findings carry citations to the specific document, page, and clause, so the team verifies and acts with full context.

The result: fewer surprises mid-project, fewer denied claims, and a documentation trail that supports the contractor’s position when questions arise.

Frequently Asked Questions

Is Course of Construction Insurance Just Another Name for Builders Risk?

Yes. Both names cover the same insurance product. Canadian contracts and brokers use course of construction; American contracts use builders risk. Carriers treat the labels as equivalent, and the choice has no effect on coverage.

Does It Matter Which Term Appears in Your Contract?

For coverage purposes, no. Within the North American market, the instruments behind each label are identical. For drafting consistency, yes. Mixing terminology across the contract, the spec, and the certificate creates ambiguity that surfaces during a claim dispute.

What if My Contract Names Both?

Some contracts reference course of construction or builders risk together to cover regional variations or carrier preferences. The dual naming is intentional and creates no conflict. A procured policy satisfies the requirement regardless of which term the carrier uses on its declarations page.

What Should You Do if Your Contract Uses One Term and Your Insurance Certificate Uses the Other?

The terms function as synonyms in US construction insurance. Coverage written under one label fulfills a contract that calls for the other. Verify that limits, named insureds, additional insureds, and endorsements on the certificate match the underlying policy, since the substantive details matter more than the label.